On the outside the harpsichords are finished in various colours and on the inside overlaid with walnut; the lid is spruce, and on the inside the wood is visible. They sit on stands with top and bottom frames which follow the curve of the instrument's body, and they have six (Vater) or eight (Mietke and Zell) turned legs; the keyboards are covered with ebony. The octave-spinet after Biderman comes with an ebony veneer and the keys are covered with ivory—it is a table instrument without a separate stand.